Ggwimutatgr



(No Model.) u

E- A. SPERRY.

l GOMMUTATOR.

Patamsed June 9; ESM.

SPECFICATXN forming parto@ Letten pplcatic-u lel'l February Z0, 1891.

.To @Z5 whom. f

ELMLm- 1' Gimmy A @ith lng; Clucagm in the countyo' @ook and Bm'o of illinois, ha. o

invented a new d useful Cmnmulimmg o which the 'following is a ole-m, full, and oxacl. Sp-eocatiom Thecomumtatoristhomosxlollca {lynmno or motor, inasmuch x5 iis held ogeiller only through 'the mec'.' Sulalnf.; subzsmnoos, Wholx al, o'f pressiblo and hablo 'io slow-inlet. l, expansion of the copper segments and bho Steel @ouml x1g-5le9v`o is such i to @rush ho l; insulation when ho, leaving' the @ML of the com numol' looso when Coolu u n. is also easily uilfeil by oil fvwm. the jow The. containing-sleeveu. llypx'o'uuf of the commutalor so to oooupg om blleyreou noi allowing tho comunali-alor ments themselves to oom@ close l 111x5- o 'the mmal'm'e. 'These clcultes o. :a1-oom@ in the manner shown in tho aocompanylng al, and 5 wie details of slatc. medium to proto@ being caushoil.

Smlorleitors o reference imlsao Uw famo parlo throughoul, me

vous forms of m1' S Patent No. @5i-8232,

dated Enno l, ll.

Serial. No: 382,152. :lovlelfr @mio lfnoir honi. 'but slowly ini-zlxod vont: 1.o' monts: will oxpmr, l mow sleeve and exurezll @no lslyox: ol ou moon5 and upon cooling will Smink it'. 'lrls operation Qrixshngvmal slnizllfing du@ to tho hea-ting and cooling will rzzply rouor thoV rl@ loose :nul destroy three oonf muzior, L {lefoct l 'omwlj," by ins: ting au elsli lodum bc'two@ o tho limer smffo ik@ A limit mysclf io ef inenleftng in eiel l ern Le i1 r me use ef ellellae er en y nenael 1.1..-- 'we that it eeinenle the eennnnne eiwit, ee that il: is almost imposru e get it eff for repairs er replacement. nis d'enlry have remedied by 'the simple en reient ef enlllzing the Aeonlarming sleeve rnie rheshef't, as shown et S? thereby making e close n llt between the sleeve and. snnf werent the ell frezn passing' between.

1 new nml (leere io secure by Letl beim elynnme er nletor e medium relieve me or meier, een

:eve the nlue 'le ythe j e parte.

Veen the sleeve nml.

'e the Qonxm y yells.

me or motor,

my strains of compr selen due teA the expansion or eentrneton of the parte.

i., eennning sleeve7 segments, shaped as shown, seperated from the sleeves by a layer o? insuleton, e "nut te secure the parts firmly together,y and an elastic medium between the nut and. the segments to keep the part-s nt all times pressed rxnly together.

5. L eommnmtor for n dynamov or motor, consisting ef a containing-sleeve, segments conmined l@herein bt insulated therefrom, and e shaft, -the Said eo11enix1g-eleeve being (talked onz-o the to prevent ghe passage of eil.

G. n n. eexn'nrnliutor for n, dynamo or meter, nenln-te Segments, e, entninngeleeve meun ,ed en the shaft and bearing upon lone ends 0f the Segmente, proj eetione on the eonnnutntor Segmente which protrude :ma one end. beyond the point of bearing beiweelrthe ,saleevefend the eegnlentsnvth the j el nl. oet-Ween the Sleeve and the shaft enlke. to form nn oil-step between the journal and the inner ends ef the commnner-segments. l

Executed this the 9th (lay of February, 1891.

ELMER A. SPERRY. esenee' ef- M. Hmm,

C: vereis-rn.

l. ln n eommucwizor for e dynamo or motor, 

